The Essence of Clinical Practice Guidelines for Lumbar Spinal Stenosis, 2021: 5. Postoperative Prognosis.

Abstract

Preoperative numbness at rest (OR 85.6) was associated with residual leg pain/numbness, and preoperative numbness at rest (OR 4.5) and foot drop (OR 11.6, 95% CI 2.5-59.1) were associated with residual gait disturbance. The degree of symptoms after surgery was stronger in the DM group than in the non-DM group. It is necessary to explain that leg numbness and pain tend to remain when performing surgery on LSS patients with DM. The mechanism of leg cramps is complex and remains inconclusive. Therefore, it cannot be confirmed whether leg cramps are a symptom of LSS or a comorbidity. Poor Prognostic Factors for Surgical Outcomes of LSS